I only recently learned that in the US not every state has annual inspection requirements. In fact it’s a minority of states, only 14, and it looks like the inspection requirements have been reduced in recent years, such as some states exempting new vehicles for a certain amount of time or only requiring inspections for commercial vehicles. Both states I’ve lived in had annual inspections and I just assumed it was a thing everywhere.

In Spain you have 4 or 5 years before the first safety inspection. And the then, if it's a van or bigger it's each 6 months and if it's a car, 1 year.